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Title: Thermally and photoinduced polymerization of ultrathin sexithiophene films

Abstract

The thermally-induced polymerization of α-sexithiophene (6T) molecules on Ag(001) and Au(001) gives rise to long unbranched polymer chains or branched polymer networks depending on the annealing parameters. There, the onset temperature for polymerization depends on the strength of interaction with the underlying substrate. Similar polymerization processes are also induced by ultraviolet radiation with photon energies between 3.0 and 4.2 eV. Radical formation by an electronic excitation in the 6T molecule is proposed as the driving mechanism that necessitates the interplay with the metallic substrate.

Authors:
; ; ;  [1];  [1];  [2]
  1. Institute of Physics, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 3, 06120 Halle(Saale) (Germany)
  2. (Saale) (Germany)
Publication Date:
OSTI Identifier:
22308386
Resource Type:
Journal Article
Journal Name:
Journal of Chemical Physics
Additional Journal Information:
Journal Volume: 141; Journal Issue: 10; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-9606
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ANNEALING; EXCITATION; FILMS; INTERACTIONS; MOLECULES; PHOTONS; POLYMERIZATION; POLYMERS; RADICALS; SUBSTRATES

Citation Formats

Sander, Anke, Hammer, Rene, Duncker, Klaus, Förster, Stefan, Widdra, Wolf, E-mail: wolf.widdra@physik.uni-halle.de, and Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle. Thermally and photoinduced polymerization of ultrathin sexithiophene films. United States: N. p., 2014. Web. doi:10.1063/1.4894437.
Sander, Anke, Hammer, Rene, Duncker, Klaus, Förster, Stefan, Widdra, Wolf, E-mail: wolf.widdra@physik.uni-halle.de, & Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle. Thermally and photoinduced polymerization of ultrathin sexithiophene films. United States. doi:10.1063/1.4894437.
Sander, Anke, Hammer, Rene, Duncker, Klaus, Förster, Stefan, Widdra, Wolf, E-mail: wolf.widdra@physik.uni-halle.de, and Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle. Sun . "Thermally and photoinduced polymerization of ultrathin sexithiophene films". United States. doi:10.1063/1.4894437.
@article{osti_22308386,
title = {Thermally and photoinduced polymerization of ultrathin sexithiophene films},
author = {Sander, Anke and Hammer, Rene and Duncker, Klaus and Förster, Stefan and Widdra, Wolf, E-mail: wolf.widdra@physik.uni-halle.de and Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle},
abstractNote = {The thermally-induced polymerization of α-sexithiophene (6T) molecules on Ag(001) and Au(001) gives rise to long unbranched polymer chains or branched polymer networks depending on the annealing parameters. There, the onset temperature for polymerization depends on the strength of interaction with the underlying substrate. Similar polymerization processes are also induced by ultraviolet radiation with photon energies between 3.0 and 4.2 eV. Radical formation by an electronic excitation in the 6T molecule is proposed as the driving mechanism that necessitates the interplay with the metallic substrate.},
doi = {10.1063/1.4894437},
journal = {Journal of Chemical Physics},
issn = {0021-9606},
number = 10,
volume = 141,
place = {United States},
year = {2014},
month = {9}
}